3-(3-Methylthiophen-2-yl)benzene-1-sulfonyl chloride CAS 1341979-62-1
| CAS No. | 1341979-62-1 |
| Molecular Formula | C11H9ClO2S2 |
| Molecular Weight | 272.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(3-Methylthiophen-2-yl)benzene-1-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
3-(3-Methylthiophen-2-yl)benzene-1-sulfonyl chloride (CAS 1341979-62-1), molecular formula C11H9ClO2S2 and molecular weight 272.77 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9ClO2S2, 3-(3-Methylthiophen-2-yl)benzene-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 272.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9ClO2S2 |
| Molecular Weight | 272.77 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methylthiophen Standards
- (2E)-3-(5-Methylthiophen-2-yl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 1440663-62-6)
- (2E)-3-(5-Methylthiophen-2-yl)-1-(4-nitrophenyl)prop-2-en-1-one (CAS 1699750-47-4)
- (2E)-3-(3-Methylthiophen-2-yl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 832127-35-2)
- 4-(5-Methylthiophen-2-yl)-6-(thiophen-2-yl)pyrimidin-2-amine (CAS 1354919-76-8)
- 4-(3-Methylthiophen-2-yl)-6-(thiophen-2-yl)pyrimidin-2-amine (CAS 1354923-07-1)
- (5-Ethyl-4-methylthiophen-2-yl)(indolin-1-yl)methanone (CAS 794563-32-9)
- 3-Methyl-6-(5-methylthiophen-2-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 924191-70-8)
- 1-[(5-methylthiophen-2-yl)sulfonyl]pyrrolidine-2-carboxylic acid (CAS 1008281-37-5)
Recommended Standards
- 5-Chloro-3-[(2-phenoxyethyl)sulfanyl]-1,2,4-thiadiazole (CAS 1326811-27-1)
- N-((1-(2-Chloroacetyl)piperidin-3-yl)methyl)-N-cyclopropylacetamide (CAS 1353952-46-1)
- 1-(5-Chloro-1,3-dimethyl-1h-pyrazol-4-yl)-N-((4-methylmorpholin-2-yl)methyl)methanamine (CAS 1311651-94-1)
- 2-Chloro-N-(2-(N-cyclopropylacetamido)cyclohexyl)acetamide (CAS 1353958-13-0)
- 1,2-Dichloro-4-(1-chloropropyl)benzene (CAS 68120-38-7)
- Iridium, (2,4-pentanedionato-κO2,κO4)bis[2-(thieno[3,2-c]pyridin-4-yl-κN5)phenyl-κC]- (CAS 1258323-36-2)
- 3,5-Bis(chloromethyl)-2,4,6-trifluorobenzotrifluoride (CAS 886762-13-6)
- 2-Deoxy-D-ribose 1,3,4-Triacetate (CAS 4258-01-9)
- N-(5-Bromo-3-methyl-2-pyridinyl)-N-propylamine (CAS 1219982-70-3)
- Methyl (2R,3S)-2-(o-tolyl)pyrrolidine-3-carboxylate oxalate (CAS 1391559-96-8)
- 7-(4-Methylphenyl)-2,5-dioxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylic acid (CAS 924834-92-4)
- N-(5-Amino-2-methoxyphenyl)-2-phenoxypropanamide (CAS 954257-89-7)
- 5-[(diethylamino)methyl]thiophene-2-carboxylic acid,HCl (CAS 1431964-13-4)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com